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Merge pull request #469 from infosiftr/go-wrapper-stderr 

Add a note about how to remove the spurious stderr blurb in golang:onbuild
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yosifkit 2016-01-26 13:20:54 -08:00
parent 6cde885be8 6844b87cc3
commit e6e23ceaff
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golang/content.md
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@ -27,6 +27,8 @@ $ docker build -t my-golang-app .
$ docker run -it --rm --name my-running-app my-golang-app $ docker run -it --rm --name my-running-app my-golang-app
``` ```
*Note:* the default command in `%%REPO%%:onbuild` is actually `go-wrapper run`, which includes `set -x` so the binary name is printed to stderr on application startup. If this behavior is undesirable, then adding `CMD ["app"]` (or `CMD ["myapp"]` if a [Go custom import path](https://golang.org/s/go14customimport) is in use) will silence it by running the built binary directly.
## Compile your app inside the Docker container ## Compile your app inside the Docker container
There may be occasions where it is not appropriate to run your app inside a container. To compile, but not run your app inside the Docker instance, you can write something like: There may be occasions where it is not appropriate to run your app inside a container. To compile, but not run your app inside the Docker instance, you can write something like: